The following package should be installed before RainbruRPG is installed:

* nanoc
  + Needed to compile the website
  + homepage:
    http://nanoc.ws/
  + installation:
    `gem install nanoc`

* imagemagick
  + Needed to create thumbnails
  + homepage:
    http://imagemagick.org
  + download:
    http://www.imagemagick.org/download/

* kramdoown
  + Needed for markdown support
  + homepage:
    http://kramdown.rubyforge.org
  + installation:
    gem install kramdown

* builder
  + Needed to generate XML sitemap
  + homepage:
    http://rubygems.org/gems/builder
  + installation:
    gem install builder
